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An ultra-low power CMOS smart temperature sensor for clinical temperature monitoring

Tao Wu, Man-Kay Law, Pui-In Mak, Rui P. Martins
2013 2013 IEEE International Conference of Electron Devices and Solid-state Circuits  

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This paper presents an ultra-low power, high accuracy CMOS smart temperature sensor for clinical temperature monitoring applications. The proposed sensor trades off the sensing range and the conversion speed with improved accuracy and power consumption. The sensor consists of a power optimized analog frontend and a delta-sigma analog-to-digital converter (ADC) with dynamic element matching (DEM), as well as a modified gain stage to optimize the sensing range and relax the resolution
more » ... t. Using a standard 0.18μm CMOS technology, the achieved accuracy and conversion speed after one-point calibration from 27°C to 47°C are ±0.1°C and 2 sample/s, respectively, while consuming only 1.1μW power.
doi:10.1109/edssc.2013.6628063 fatcat:uyjaovevwnfrnhka6gao5yv2uq
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Tao Wu, Man-Kay Law, Pui-In Mak, Rui P. Martins. "An ultra-low power CMOS smart temperature sensor for clinical temperature monitoring." 2013 IEEE International Conference of Electron Devices and Solid-state Circuits (2013)